Bank Tower Project Project: Sealant Restoration – 93,703 ln ft Bank Tower Project Project: Sealant Restoration – 93,703 ln ft Overview This 47-story high-rise was built in 1983. We removed existing exterior sealants and replaced with new backer rod and silicone sealant on 4 of 6 exterior elevations. bank-tower-project (1) Wells Fargo Photo